#include<bits/stdc++.h>
using namespace std;
#define all(x) (x).begin(),(x).end()
#define rall(x) (x).rbegin(),(x).rend()
const int N=2e5+10;
#define INF 0x3f3f3f3f;
typedef long long int ll;
#define close(); std::ios::sync_with_stdio(false);cin.tie(0),cout.tie(0);
//----------------------------------------------------------------------------//

void solve()
{
	ll n=0;
	cin>>n;
	if(n%2==0)
	{
		cout<<"kou"<<'\n';
	}
	else
	{
		cout<<"yukari"<<'\n';
	}
	
}

int main()
{
	close();
	// int T; cin>>T;
	// while (T--) solve();
	solve();
	return 0;
}